The “Memorandums of the Imperial Academy of Sciences” publish scientific papers from various disciplines and contribute to academic research. Volume 52, containing the “Canon of Eclipses,” was a valuable resource for astronomy and astrophysics enthusiasts who want to study eclipses in the past and future and make predictions about such events. This publication comes from Theodor Ritter von Oppolzer and was published in 1887. The “Canon of Eclipses” was a comprehensive collection of over 13,000 solar and lunar eclipses, including all total solar and penumbral lunar eclipses between ?1208 B.C.E. and 2161 AD. This book provides detailed information on the timing, duration and location of all eclipses mentioned.

This item was about total solar eclipse of 18th August 1868. At Masulipatnam Pogson detected the hydrogen line emission, with a spectroscope. He saw a bright yellow line near the position of D lines of Sodium. The line originated from hitherto unknown element later termed as helium after the source of earliest detection. Hand coloured sketch of the solar spectrum during the Total Solar Eclipse of 1868. Hand coloured picture of the sun before and after the total solar eclipse 1868.

This item was about the sketch of the path of a total solar eclipse that occurred in India in 1868. It depicts the Peninsula of India and shows the track of the Moon's shadow during the eclipse on August 17, 1868. The sketch was created by V.T. & A.K. Johnston in Edinburgh and includes scalar measurements at the bottom.

These photographic slides contain photos of the Mexico Eclipse camp in 1970, the solar corona in 1980, and the Spectrograph well.

These photographic slides contain photos of Solar eclipse, Solar corona and J.C Bhattacharya.

These photographic slides contain astronomical events, some observations like the Evershed effect, the Spectrum by Evershed, Partial phase of moon eclipse, etc.

These photographic slides contain some places where the solar eclipse was seen, the eclipse tower, the spectrograph, and a few photographs of J.C. Bhattacharya.

This fond contains collection of items that provide information about solar eclipses that occurred during the time period of 1868-2006. The collection includes photographs of total solar eclipses that took place on different dates, and covered from different places as well as sketches that help to illustrate the phenomenon and the path of the eclipses.

The album contains photos of the national meeting on the results of the total solar eclipse on 24 October 1995. The meeting was held in Bangalore from 26 to 27 February 1996, and the album includes photographs of the discussion and the presentation by delegates.

The album contains photos of Sir Arnold Wolfendale and his wife Audrey Darby during the visit to IIA Bangalore in 1993 for the event of the 1993 solar eclipse. The album includes photographs of the talk by eminent personalities from the field of astronomy in the library meeting hall and participants and of the observation site.